Parametric interaction of a spin wave pulse with localized non-stationary pumping: Amplification and phase conjugation

Citation
Ga. Melkov et al., Parametric interaction of a spin wave pulse with localized non-stationary pumping: Amplification and phase conjugation, IEEE MAGNET, 35(5), 1999, pp. 3157-3159
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
5
Year of publication
1999
Part
1
Pages
3157 - 3159
Database
ISI
SICI code
0018-9464(199909)35:5<3157:PIOASW>2.0.ZU;2-4
Abstract
Parametric interaction of a dipolar spin wave pulse with electromagnetic fi eld of a localized nonstationary (pulsed) pumping is studied experimentally and theoretically in yttrium-iron garnet (YIG) films. This interaction lea ds to the effective amplification of the incedent BVMSW pulse, and also to the formation of a phase-conjugated and amplified pulse propagating in the reverse direction. Numerical calculation of amplification and conjugation c oefficients are in good quantitative agreement with experiment.